So far, I do not believe anyone has made the seam absolutely invisible, but Mark Larson has come so close on guns of mine that I have to point out to people who are admiring the stocks that they include stock extensions! Here is a Lefever F grade stock followed by a B grade, both with extensions of about 1 1/2". The extensions were made by Dave Wills and Mark did the grain/figure matching to make the seam so close to invisible that most admiring observers will not see the seam.


Rich